<ion-header>
  <ion-navbar color="majorcl">
    <ion-title>设备巡检</ion-title>
  </ion-navbar>
</ion-header>

<ion-content>
  <div padding>
    <button ion-button block color="primary" (click)="listChrenClick()"> 测试ajax</button>
  </div>
</ion-content>
